Test Description
WARNING: This page is about a different variant/trim than selected.
The number below refers to the step number on the diagnostic table.
- 7: This step inspects for the transfer case causing the clunk. Shift the transfer case into another mode. If the transmission is causing the clunk, there will not be a change in the clunk.
Transmission Clunk on Acceleration or Deceleration
| Step | Action | Yes | No |
|---|---|---|---|
| DEFINITION: A clunk is heard and/or felt on acceleration or deceleration. | |||
| 1 | Did you review the Symptoms - Manual Transmission and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Manual Transmission |
| 2 | Inspect the engine mounts for being loose or damaged. Refer to Engine Mount Inspection
or Engine Mount Inspection
. Did you find and repair the condition? |
Go to Step 10 | Go to Step 3 |
| 3 | Inspect the transmission mounts for being loose or damaged. Refer to Transmission Mount Replacement (RPO Z71) or Transmission Mount Replacement (RPO Z85 and ZQ8) . Did you find and repair the condition? |
Go to Step 10 | Go to Step 4 |
| 4 | Inspect the transmission to engine fasteners for being loose or missing. Refer to Fastener Tightening Specifications . Did you find and repair the condition? |
Go to Step 10 | Go to Step 5 |
| 5 | Inspect the driveline for causing the clunk. Refer to Diagnostic Starting Point - Propeller Shaft
. Did you find and repair the condition? |
Go to Step 10 | Go to Step 6 |
| 6 | Is the vehicle equipped with a transfer case? | Go to Step 7 | Go to Step 9 |
| 7 | Shift the transfer case into 4HI. Is the clunk still present? |
Go to Step 9 | Go to Step 8 |
| 8 | Inspect the transfer case for causing the clunk. Refer to Symptoms - Transfer Case
. Did you find and repair the condition? |
Go to Step 10 | Go to Step 9 |
| 9 |
|
Go to Step 10 | Go to Diagnostic Aids |
| 10 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 1 |